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Alenkasestr [34]
3 years ago
10

Divide (24w^10+8w^12)/(4w^4)

Mathematics
2 answers:
Lesechka [4]3 years ago
7 0
\bf \cfrac{24w^{10}+8w^{12}}{4w^4}\impliedby \textit{distibuting the denominator}
\\\\\\
\cfrac{24w^{10}}{4w^4}+\cfrac{8w^{12}}{4w^4}\implies 6w^{10}w^{-4}+2w^{12}w^{-4}\implies 6w^{10-4}+2w^{12-4}
\\\\\\
6w^6+2w^8
Alex73 [517]3 years ago
7 0

Answer:

\Rightarrow 6w^6+2w^8

Step-by-step explanation:

Given: \dfrac{24w^{10}+8w^{12}}{4w^4}

We need to divide it

First we factor numerator and denominator and cancel the like factor from top and bottom.

24w^{10}\rightarrow 6\cdot 4\cdot w^{10}

8w^{12}\rightarrow 2\cdot 4\cdot w^{10}\cdot w^2

Now factor the numerator. Take out 4w^{10} common

\Rightarrow \dfrac{4w^{10}(6+2w^2)}{4w^4}

cancel 4 and w^4

\Rightarrow w^{6}(6+2w^2)

We get

\Rightarrow 6w^6+2w^8

Hence, The result of division is \Rightarrow 6w^6+2w^8

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Find the set of values of k for which the line y=kx-4 intersects the curve y=x²-2x at 2 distinct points?
Sonbull [250]

Answer:

-6 < k < 2

Step-by-step explanation:

Given

y = x^2 - 2x

y =kx -4

Required

Possible values of k

The general quadratic equation is:

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Subtract y = x^2 - 2x and y =kx -4

y - y = x^2 - 2x - kx +4

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Factorize:

0 = x^2 +x(-2 - k) +4

Rewrite as:

x^2 +x(-2 - k) +4=0

Compare the above equation to: ax^2 + bx + c = 0

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b= -2-k

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For the equation to have two distinct solution, the following must be true:

b^2 - 4ac > 0

So, we have:

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(-2-k)^2 -16>0

Expand

4 +4k+k^2-16>0

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Expand

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Factorize

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To make the above inequality true, we set:

k < 2 or k >-6

So, the set of values of k is:

-6 < k < 2

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